The oil

Decanting the lubricants

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Why shops decant The applicator does the work 43 dropper assemblies on this shelf Mineral oil is easy on resins Cork grease is a different format And this shelf has no tin Labelling a decant is a real duty And if you sell what you decant Keep the bulk sealed And date the working bottle References

The applicator is the product. Valve oil goes into a hole you cannot see.

Why shops decant

Bulk oil is cheaper and a workshop goes through it. The working container needs a precise applicator that a bulk bottle does not have.

The applicator does the work

Valve oil is applied down a valve casing or onto a piston, which is a narrow, blind target. A needle or a fine spout is what makes it possible without flooding the instrument.

43 dropper assemblies on this shelf

Plus 6 dropper tips and caps. That is the relevant set, matched to the 96 containers at the 20-410 neck which is the common small-bottle finish here.

Mineral oil is easy on resins

Which makes this the simplest decant in the library. 62 HDPE and 266 PET containers are both fine for a straight mineral oil.

Cork grease is a different format

A soft wax or petrolatum in a small tub or a push-up tube. Applied with a finger, which makes a wide shallow container the right object.

And this shelf has no tin

The traditional cork grease container is a small screw tin, and there is no steel and no tin in this group at all. 12 tubs and pails and 2 tubes is the nearest.

Labelling a decant is a real duty

For a workplace, moving a product into another container has the hazard communication consequences the shop consumables property sets out in full, including the narrow portable container exemption.

And if you sell what you decant

You are repackaging, which the miniature painting property covers for art materials and which has its own labelling consequences in any category.

Keep the bulk sealed

An oil decanted repeatedly from a large bottle spends its life meeting air. 11 liners and sealing discs here, which is the component that keeps the stock bottle worth decanting from.

And date the working bottle

So that a bottle filled a year ago and half used is recognisable as such. Oils do not spoil quickly and they do pick up what they are stored against.

References

21 CFR 172.878: "White mineral oil is a mixture of liquid hydrocarbons, essentially paraffinic and naphthenic in nature obtained from petroleum." It must meet the United States Pharmacopeia test for readily carbonizable substances, the U.S.P. requirement for sulfur compounds, and the specification published in the Journal of the Association of Official Analytical Chemists. This section is a food additive provision; it is cited here as the published definition of the grade, not as a rule applying to instrument lubricants. law.cornell.edu

The Davis Pack Supply catalog, measured 19 October 2026. The instrument care shelf is 1,026 rows: 525 containers and 501 closures. 5 mL to 500 mL with a median of 118; 30 containers at 15 mL or under, 100 at 30 or under, 207 at 60 or under, 390 at 120 or under. 266 PET, 119 glass, 78 PP, 62 HDPE, and no steel or tins at all. 287 bottles, 224 jars, 12 tubs and pails, 2 tubes. 147 clear, 112 white, 82 amber, 51 blue, 45 natural, 37 black. Closures: 345 continuous thread, 43 dropper assemblies, 27 dome lids, 19 lug and twist, 16 flip top, 14 phenolic, 11 liners and sealing discs, 6 dropper tips and caps, 6 round tubs. Necks: 96 at 20-410, 59 at 24-410, 56 at 89-400, 56 at 70-400.

Written from 21 CFR 172.878 and from the catalog as it stood on 19 October 2026. Nothing here says a food-contact regulation applies to an instrument lubricant; 172.878 is cited as the published specification for white mineral oil, which is the benchmark a manufacturer can either meet or not. The other four leaves have no governing regulation and this property says so rather than borrowing one.